For the past couple of months I have been playing around with imaging. been reading everything I could get my hands on, even picked several brains along the way. I started my project with simple goals in mind. But after listening to others systems, as well as my own. My goals keep getting raised I built the kicks allready. Temporarily using a pair of $1 crunch midbasses ( I love yard sales ) and a pair of large format PE silk domes. Simple inline crossovers. powered by an rf 200a4. To my amazement, and a few others. The sound was rather nice with no processing what so ever. So my goal has now changed once again. I was originally building towards a single seat soundstage. After listening to what I had with the crap drivers so far. I knew I could make it better with better drivers. And a touch of eq. Stage heigth, width, and depth are excellent. While listening to test tracks the stage locations are spot on. But every once in a while, when listening to music. The center will slide over to right center.

I have come to two different solutions. a band aid being listening to different frequency tracks until I find the offending frequency(s). Then use the eq to either boost or cut the neccesary side and band.

Or what I think might be a better idea

I'm thinking I need to listen to the mids my themselves. Using the different frequency tracks. And try switching the phase one at a time.If it is truly a phasing issue, it should be an easy fix.

Sound like a phasing issue to you guys or something else ?

Easy to check if you found the offending freq's, just replay them with the leads switched which of course you already know. As for the sliding of the stage it sounds like it sure could be phase to me or at least some sort of interference. Is there anything else you can do to make it change?

Nope, just a couple different songs. The voice tends to wonder off a little. That's what led me to thinking it's a phase issue. I'm gonna do some switching when I get home and see what I come up with.

I cheat and use an arbitrary function generator...

This is my first personal attempt at anything related to SQ. I'm taking everything step by step so hopefully I can understand what causes the problems. And why the solution fixes it.

Any possibility it's in the recording? Does it happen with pitch changes? That's the only way I could see it to be frequency related.

To check flip l/r rca and if it doesn't go left that time it is definetely an install/car problem.

umm okay, once I switched the phase of the passenger mid. The problem is gone. Everything is dead center. Anybody venture a guess why ?

Glad to see that you fixed the problem. are you going to compete at the Shelor show?

Don't know yet, I keep running into one problem after the other.

The reason is beacause you're mid (in phase) had a drop out with the next speaker (midbass or tweet) causing it to be very low in volume. When a song contained frequencies that were being attenuated, the stage will be pulled the other side. The other thing has to with phasing issues, flipping the mid helped the phase at the offending frequency - but be aware, it may adversely effect another group of freq's.